I see a bunch of Antminers on Amazon for around 150$ id need to buy the power supply, I also dont pay for power where im staying. Should I invest?
I think given your current circumstance, it is high time to invest now. It is because one of the reasons mining is expensive is because of its electricity costs. Since you have mentioned you need not pay for electricity or power consumption, it is best to do critical thinking now about investing. Otherwise, you will lose a business opportunity at this point in time.